condition	mean	min	max
4 h after light	9.1841925	8.706106	9.662279
8 h after light	8.130687	7.893901	8.367473
12 h after light	7.493643499999999	7.478158	7.509129
4 h after dark	7.761467	7.114842	8.408092
8 h after dark	8.9866455	8.280078	9.693213
12 h after dark	8.970418	8.970418	8.970418